21314775

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{7681}}^1$

素因数の和:7731

約数の個数: 24

約数和(自身を含む): 36197584

約数和(自身を除く): 14882809

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 185, 555, 925, 2775, 7681, 23043, 38405, 115215, 192025, 284197, 576075, 852591, 1420985, 4262955, 7104925, 21314775]

約数ペア:

[(1, 21314775), (3, 7104925), (5, 4262955), (15, 1420985), (25, 852591), (37, 576075), (75, 284197), (111, 192025), (185, 115215), (555, 38405), (925, 23043), (2775, 7681)]